Similar to the the motor boat, only one motor boats a girls ass then the girl farts in the guys face, hence the shitter boat
I went home with this girl last night and she had the nicestass so I decided to motor boat it, unfortunately she decided toshitter boat my face! Needless to say mouthwash for days!
by mrk3jetta May 11, 2011
Get the shitter boatmug.